From: kernel test robot <oliver.sang@intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
<devel@driverdev.osuosl.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
"Liang, Kan" <kan.liang@linux.intel.com>,
<linux-kernel@vger.kernel.org>,
<linux-perf-users@vger.kernel.org>, <oliver.sang@intel.com>
Subject: [driver-core:pmu_bus] [perf/core] 8c8ac498a0: sysfs:cannot_create_duplicate_filename
Date: Wed, 19 Feb 2025 13:59:30 +0800 [thread overview]
Message-ID: <202502191352.b65c904c-lkp@intel.com> (raw)
Hello,
kernel test robot noticed "sysfs:cannot_create_duplicate_filename" on:
commit: 8c8ac498a0c5d8e68247800639bfb554bb65c782 ("perf/core: move all of the pmu devices into their own location")
https://git.kernel.org/cgit/linux/kernel/git/gregkh/driver-core.git pmu_bus
in testcase: boot
config: x86_64-randconfig-071-20250217
compiler: gcc-12
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+--------------------------------------------------------+------------+------------+
| | 5c96041392 | 8c8ac498a0 |
+--------------------------------------------------------+------------+------------+
| sysfs:cannot_create_duplicate_filename | 0 | 6 |
| WARNING:at_kernel/events/core.c:#perf_event_sysfs_init | 0 | 6 |
| RIP:perf_event_sysfs_init | 0 | 6 |
+--------------------------------------------------------+------------+------------+
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202502191352.b65c904c-lkp@intel.com
[ 9.537939][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
[ 9.539489][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2c9477ac655, max_idle_ns: 440795235027 ns
[ 9.555343][ T1] AVX2 or AES-NI instructions are not detected.
[ 9.557309][ T1] AES CTR mode by8 optimization enabled
[ 9.558531][ T1] sm3_avx_x86_64: BMI2 instruction are not detected.
[ 9.574389][ T1] sysfs: cannot create duplicate filename '/devices/pmu_bus/power'
[ 9.575589][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-rc1-00002-g8c8ac498a0c5 #1 95963aaeb84018cf4204d4190168e0e20d73ea75
[ 9.575599][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 9.575602][ T1] Call Trace:
[ 9.575604][ T1] <TASK>
[ 9.575608][ T1] dump_stack_lvl (kbuild/src/consumer/lib/dump_stack.c:123)
[ 9.575629][ T1] sysfs_warn_dup (kbuild/src/consumer/fs/sysfs/dir.c:32)
[ 9.575636][ T1] sysfs_create_dir_ns (kbuild/src/consumer/fs/sysfs/dir.c:63)
[ 9.575641][ T1] ? __pfx_sysfs_create_dir_ns (kbuild/src/consumer/fs/sysfs/dir.c:41)
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250219/202502191352.b65c904c-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-02-19 5:59 UTC|newest]
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